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Table 1 Age, sex, BMI and smoking status of the asthmatics and the controls

From: Frequent cough in unsatisfactory controlled asthma – results from the population-based West Sweden Asthma Study

Variables No Current asthma No (%) No Controls No (%) P values
Number of subjects 744   847   
Sex (women)   460 (61.8)   451 (53.2) 0.001
Age   47.6 ± 15.5   49.9 ± 15.5 0.002
BMI 743   847   
  <20   23 (3.1)   38 (4.5) 0.150
  20-25   242 (32.6)   337 (39.8) 0.003
  25-30   289 (38.9)   364 (43.0) 0.099
  ≥30   189 (25.4)   108 (12.8) <0.001
Smoking status 742   844   
  Non-smokers   386 (52)   457 (54.1) 0.206*
  Ex-smokers   261 (35.2)   298 (35.3)
  Smokers   95 (12.8)   89 (10.5)
  1. Data are presented as No (%), except for age presented as mean ± SD. Chi-square tests are used to make comparisons between individual variables. *p-value from the test for trend.